One area where the power of the cards can be compared (somewhat) is the amount of SP's or Cuda cores. The 470 has 448 and the the 460 has 336.The 470 comes clocked at 607mhzThe 460 is clocked any where from 675-820. Its at 820mhz where it approaches the power of the gtx 470 at 600mhz. The 470 can be almost a hundred dollars more a card. So the overclocking ability of the 460 gives gamers the power of the flagship cards for less.

but if you overclock 460 , also you can ovrclock 470 to 800mhz with more voltage and on stock air cooling and msi afterburner good profile .I want a benchmark of 460 oc sli against sli 470 oc and not oc .

but if you overclock 460 , also you can ovrclock 470 to 800mhz with more voltage and on stock air cooling and msi afterburner good profile .I want a benchmark of 460 oc sli against sli 470 oc and not oc .

I have a friend who overclocked it to 905MHz with stock air cooling and he increased the voltage to 1,0037 (I think , I don't really remember but I can get you the exact number if you need it) and made MSI afterburner profile to Increase the fan speed when temperature increases and every thing is fine .This is largest stable overclock I've seen for GTX470 , approximately 30% of stock speed on stock air cooling ,impressive !!

What I adore about GTX470 , When you make MSI afterburner fan profile , It becomes very quit as it runs idle on 50 MHz only , so temp. is low and fan also is low .It reaches the overclock frequency only when you play games , so it runs hot and MSI profile increase fan speed , it gets noisy but you know what !! I can't hear it as the game covers it , When you finish playing it gets back to 50MHz and temp is low again and quite .

I know gtx 470 is more powerful than 460 but they say that 460 sli scaling is much better than 470 sli that the net result is 460 sli is better than 470sli !!!

No, that is completely false. The GTX 470 SLI will scale just as well as the GTX 460 SLI. A GTX 470 is about 20% faster than a GTX 460, so the setup should coincide with that. It is the 5850 CROSSFIRE that scales worse than the GTX 460 SLI to the point of irrelevancy.

r_Rozx said:

I have a friend who overclocked it to 905MHz with stock air cooling and he increased the voltage to 1,0037 (I think , I don't really remember but I can get you the exact number if you need it) and made MSI afterburner profile to Increase the fan speed when temperature increases and every thing is fine .This is largest stable overclock I've seen for GTX470 , approximately 30% of stock speed on stock air cooling ,impressive !!

All cards overclock differently, don't expect to hit 900 MHz.

r_Rozx said:

What I adore about GTX470 , When you make MSI afterburner fan profile , It becomes very quit as it runs idle on 50 MHz only , so temp. is low and fan also is low .It reaches the overclock frequency only when you play games , so it runs hot and MSI profile increase fan speed , it gets noisy but you know what !! I can't hear it as the game covers it , When you finish playing it gets back to 50MHz and temp is low again and quite .

Thank you. This is one of those things all the legions of frothing idiots around the web need to remember. These idiots will tell you that the performance and price don't matter because the GTX 470/480 runs hot and uses more power then the 5xxx series, despite the large performance benefits, better multi-card scaling, better tesselation performance, much better price point when it comes to the GTX 470, and how small the other issues are.

When fermi was released all sites said it's a disappointment !!Why the hell , they said it's noisy , hot , takes much power and outperformed by 5XXX .Actually , GTX470 on 60 % is completely silent , After the new deivers , fermi performance increased so much that 470 is more powerful than 5870 in most games , not to mention physics support , cuda , better tessellation , stable drivers , games enhancement , Nvidia 3d vision , better SLI scaling than CF and more .

I have 4850 and GTX470 , GTX 470 is much quieter and cooler .As i said before MSI afterburner fan speed profile makes the maximum temp . 74and maximum fan speed 80 , it never reaches such values unless you stress the GPU to 98% with overclocking , The card never gets noisy below 70 % and when it gets noisy you can't hear it as the game covers it .

Just for comparison , HD 4850 (which is considered a quite , cool card ) reaches 70 C when fan is set to 60 . If you increased it over 65 % , it will be scary man and it will cover the sound of the game , when you run it on 100% , it's like a vacuum !!

The ability of GTX470 is massive , My friend overclocked a Gainward stock GTX470 to 905MHz , so I think with a pro galaxy fan cooler it may reach 1000 MHZ .

GTX 470s in SLI will be much better than GTX 460s in SLI in terms of performance, but at the cost of high power consumption, temperature and noise as well as costing 250$ more.Its really the OP's choice to make.